Step 2 she should add 4 not subtract
Expression with parenthesis: = 2 ( l + w)
Expression without parenthesis = 2l + 2w
The property we used is known as "Distributive Property"
Let, width = w
Length = w + 70
Perimeter would be: P = 2(w+70+w)
p = 2(2w+70)
p = 4w + 140
Hope this helps!
Work shown above! Box a is 240 lbs Box b is 120 and Box c is 150 lbs hope this helps c:
Answer:
230
Step-by-step explanation:
54+4×22×2
54+88×2
54+176
230
